HBase 0.92+ onwards has had support for Apache Hadoop 2.x+ along withApache Hadoop 1.x.

The note on the web manual says that:

"As of Apache HBase 0.96.x, Apache Hadoop 1.0.x at least is required.We will no longer run properly on older Hadoops such as 0.20.205 orbranch-0.20-append. Do not move to Apache HBase 0.96.x if you cannotupgrade your Hadoop[10].

Apache HBase 0.96.0 runs on Apache Hadoop 2.0."

Which means, starting with 0.96, only 2.x Hadoop will be supported andsupport for 1.x or older Hadoop versions will be dropped (or will notbe "properly supported").

On Thu, Nov 22, 2012 at 11:55 PM, Jean-Marc Spaggiari<[EMAIL PROTECTED]> wrote:> Hi,>> Is HBase 0.94.x running with Hadoop 2.0.x?>> I saw that 0.96.0 will be, but I was wondering for 0.94.x...>> Thanks,>> JM

On 11/22/2012 01:49 PM, Harsh J wrote:> HBase 0.92+ onwards has had support for Apache Hadoop 2.x+ along with> Apache Hadoop 1.x.>> The note on the web manual says that:>> "As of Apache HBase 0.96.x, Apache Hadoop 1.0.x at least is required.> We will no longer run properly on older Hadoops such as 0.20.205 or> branch-0.20-append. Do not move to Apache HBase 0.96.x if you cannot> upgrade your Hadoop[10].>> Apache HBase 0.96.0 runs on Apache Hadoop 2.0.">> Which means, starting with 0.96, only 2.x Hadoop will be supported and> support for 1.x or older Hadoop versions will be dropped (or will not> be "properly supported").So, it's means that, it's good to think to upgrade first all your applications fromHadoop 1.x to Hadoop 2.x if you want to keep updated with HBase?

Where I can find the Development roadmap for HBase 0.96?Thanks>> On Thu, Nov 22, 2012 at 11:55 PM, Jean-Marc Spaggiari> <[EMAIL PROTECTED]> wrote:>> Hi,>>>> Is HBase 0.94.x running with Hadoop 2.0.x?>>>> I saw that 0.96.0 will be, but I was wondering for 0.94.x...>>>> Thanks,>>>> JM>>

Marcos makes a good point btw - Move from 1.x to 2.x also involvesrecompiling your existing MR apps (if they are already built withmaven, thats not too much work to do). But other than a few obviousissues caught by the java compiler, the APIs remain the same.

Yes, the MR jobs and other apps would need to be recompiled along with this.

> Where I can find the Development roadmap for HBase 0.96?

Am unsure of a formal location for this. Perhaps a dev can comment. Imerely try to follow as many JIRAs as I can. I do know snapshots andprotobuf RPCs are some of the major work being done for this version,but others would probably know better.

On 11/22/2012 02:35 PM, Harsh J wrote:> Marcos makes a good point btw - Move from 1.x to 2.x also involves> recompiling your existing MR apps (if they are already built with> maven, thats not too much work to do). But other than a few obvious> issues caught by the java compiler, the APIs remain the same.Good to know, Harsh.>> Marcos - response inline:>> On Fri, Nov 23, 2012 at 12:31 AM, Marcos Ortiz <[EMAIL PROTECTED]> wrote:> <snip>>> So, it's means that, it's good to think to upgrade first all your applications from>> Hadoop 1.x to Hadoop 2.x if you want to keep updated with HBase?> Yes, the MR jobs and other apps would need to be recompiled along with this.>>> Where I can find the Development roadmap for HBase 0.96?> Am unsure of a formal location for this. Perhaps a dev can comment. I> merely try to follow as many JIRAs as I can. I do know snapshots and> protobuf RPCs are some of the major work being done for this version,> but others would probably know better.It would be nice a official site for this.For example, in the PostgreSQL Development process, the main developers publishes an entryin the wiki for every planed release. For example, for the last version (9.2), look here:http://wiki.postgresql.org/wiki/PostgreSQL_9.2_Development_Plan

Or can I just keep my existing HBase confirmation and "simply" upgrademy hadoop to 2.x?

JM

2012/11/22, Harsh J <[EMAIL PROTECTED]>:> HBase 0.92+ onwards has had support for Apache Hadoop 2.x+ along with> Apache Hadoop 1.x.>> The note on the web manual says that:>> "As of Apache HBase 0.96.x, Apache Hadoop 1.0.x at least is required.> We will no longer run properly on older Hadoops such as 0.20.205 or> branch-0.20-append. Do not move to Apache HBase 0.96.x if you cannot> upgrade your Hadoop[10].>> Apache HBase 0.96.0 runs on Apache Hadoop 2.0.">> Which means, starting with 0.96, only 2.x Hadoop will be supported and> support for 1.x or older Hadoop versions will be dropped (or will not> be "properly supported").>> On Thu, Nov 22, 2012 at 11:55 PM, Jean-Marc Spaggiari> <[EMAIL PROTECTED]> wrote:>> Hi,>>>> Is HBase 0.94.x running with Hadoop 2.0.x?>>>> I saw that 0.96.0 will be, but I was wondering for 0.94.x...>>>> Thanks,>>>> JM>>>> --> Harsh J>

On Fri, Nov 23, 2012 at 12:28 AM, Jean-Marc Spaggiari<[EMAIL PROTECTED]> wrote:> Thanks for the clarification.>> Should I take a specific 0.94.x distribution to work with Hadoop 2.x+> ? Because there is only one version on> http://apache.parentingamerica.com/hbase/hbase-0.94.2/ ...>> Or can I just keep my existing HBase confirmation and "simply" upgrade> my hadoop to 2.x?>> JM>> 2012/11/22, Harsh J <[EMAIL PROTECTED]>:>> HBase 0.92+ onwards has had support for Apache Hadoop 2.x+ along with>> Apache Hadoop 1.x.>>>> The note on the web manual says that:>>>> "As of Apache HBase 0.96.x, Apache Hadoop 1.0.x at least is required.>> We will no longer run properly on older Hadoops such as 0.20.205 or>> branch-0.20-append. Do not move to Apache HBase 0.96.x if you cannot>> upgrade your Hadoop[10].>>>> Apache HBase 0.96.0 runs on Apache Hadoop 2.0.">>>> Which means, starting with 0.96, only 2.x Hadoop will be supported and>> support for 1.x or older Hadoop versions will be dropped (or will not>> be "properly supported").>>>> On Thu, Nov 22, 2012 at 11:55 PM, Jean-Marc Spaggiari>> <[EMAIL PROTECTED]> wrote:>>> Hi,>>>>>> Is HBase 0.94.x running with Hadoop 2.0.x?>>>>>> I saw that 0.96.0 will be, but I was wondering for 0.94.x...>>>>>> Thanks,>>>>>> JM>>>>>>>> -->> Harsh J>>

-- Harsh J

+

Harsh J 2012-11-22, 19:30

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